RTModel
Real-Time Microlensing Modeling by Valerio Bozza

 
GD220bpl
Binary
 
Binary lens models with parallax and orbital motion
Model O1     χ2=7157.09    

s=3.07526±0.0602699    q=0.333847±0.019046    u0=-0.27501±0.0150608    α=2.77357±0.0147211    ρ*=0.0321725±0.00382895    tE=77.5134±1.84516    t0=9817.95±0.247551    
πE,N=-0.350135±0.0106343    πE,E=0.236546±0.0111938    (ds/dt)/s= -7 8.94241 10±0.000204388    dα/dt=-0.0000109711±0.000155901    w3= -7 1. 10±0.00279602    
Model O2     χ2=7503.1    

s=4.0552±0.158833    q=0.316498±0.00388947    u0=-0.324051±0.010703    α=2.90453±0.0105212    ρ*=0.0603835±0.00618686    tE=58.9158±2.66851    t0=9818.62±0.340019    
πE,N=-0.425398±0.014174    πE,E=0.290939±0.0162267    (ds/dt)/s= -6 2.30434 10±0.0000115131    dα/dt= -7 -4.73054 10±0.0000909792    w3= -6 9.09545 10±0.00424424    
Binary lens models with parallax
Model X1     χ2=7159.24    

s=3.07487±0.0522228    q=0.333821±0.00584701    u0=-0.275273±0.0083879    α=2.77383±0.00805995    ρ*=0.0332987±0.00330301    tE=77.5056±1.66887    t0=9817.92±0.617233    
πE,N=-0.350172±0.00971443    πE,E=0.236347±0.00735629    
Model X2     χ2=7509.34    

s=4.0552±0.044891    q=0.31651±0.00413525    u0=-0.323783±0.00699242    α=2.90478±0.00632516    ρ*=0.0601382±0.000729246    tE=58.9095±0.632638    t0=9818.6±0.310931    
πE,N=-0.425128±0.00758994    πE,E=0.290831±0.00901651    
Binary source model with parallax
Model BX     χ2=19723.3    

tE=65.074±29.1833    FR=1.16444±3.20593    u1=0.567231±0.244918    u2=3.±2.24984    t1=9761.94±11.8724    t2=9720.19±82.041    πE,N=1.34835±0.753813    
πE,E=-1.84853±1.06094